CN115284994A - Tail gas heating device for hook arm vehicle and hook arm vehicle - Google Patents
Tail gas heating device for hook arm vehicle and hook arm vehicle Download PDFInfo
- Publication number
- CN115284994A CN115284994A CN202210891481.4A CN202210891481A CN115284994A CN 115284994 A CN115284994 A CN 115284994A CN 202210891481 A CN202210891481 A CN 202210891481A CN 115284994 A CN115284994 A CN 115284994A
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- butt joint
- tail gas
- hook arm
- arm vehicle
- spigot surface
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 34
- 210000001503 joint Anatomy 0.000 claims abstract description 87
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 206010023204 Joint dislocation Diseases 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- -1 earthwork Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/025—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from both the cooling liquid and the exhaust gases of the propulsion plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention provides a tail gas heating device for a hook arm vehicle and the hook arm vehicle, and relates to the field of tail gas heating for the hook arm vehicle, wherein the adopted scheme is as follows: including the tail gas discharge pipe, the intercommunication has the butt joint spare on the tail gas discharge pipe, the butt joint spare includes lower butt joint dish, the upper surface of lower butt joint dish is down the spigot surface, the spigot surface inclines to the top to one side down, be provided with the recess on the spigot surface down, movably on the lower butt joint dish be provided with the butt joint dish, the lower surface of going up the butt joint dish is last spigot surface, it inclines to the top to go up the spigot surface, go up spigot surface and the laminating of spigot surface down, upward be provided with the boss on the spigot surface, boss and recess clearance fit, it has the outlet duct to go up the intercommunication on the butt joint dish, the outlet duct is used for communicating with the carriage. The invention can realize butt joint in the carriage moving process of the hook arm vehicle and prevent tail gas leakage caused by butt joint dislocation of the butt joint piece and the gas outlet pipe from influencing the heating effect of the carriage, and is suitable for the hook arm vehicle.
Description
Technical Field
The invention relates to the field of tail gas heating of hook arm vehicles, in particular to a tail gas heating device for a hook arm vehicle and the hook arm vehicle.
Background
The hook arm vehicle comprises an operating system and a hydraulic system, wherein the hydraulic system comprises a lifting oil cylinder, a special carriage can be hooked and put down by self, and goods can be dumped by self-unloading, and the hook arm vehicle is characterized in that one vehicle can be matched with various carriages, can realize the combined operation of one vehicle and various carriages, such as a garbage carriage, a feces suction carriage, a barrier removal carriage and the like, and can be circularly transported, so that the transportation capacity of the vehicle is fully improved, and the hook arm vehicle can be used for large-scale industrial and mining departments to carry bulk materials such as ash, sand, stone, soil, coal and the like along with the increasing maturity of the technology of the hook arm vehicle; in northern areas of China, in the process of transporting cold vehicle cargos in winter, transported articles are easy to freeze and adhere to a carriage due to low temperature, and particularly, the condition is easy to occur when moisture-containing cargos such as coal, earthwork, garbage and the like are transported, and the adhered cargos cannot be poured out of the carriage in time, so that the gravity center of the whole vehicle is excessively deviated along with the lifting of the carriage, the vehicle body is damaged, and even a rollover accident occurs; among the prior art, utilize engine exhaust to give the carriage heating, avoid the freezing of carriage to freeze, nevertheless because during the carriage that hook arm car facial make-up used, there are tilt up motion, descending motion and horizontal motion in the carriage, the carriage needs to realize the butt joint in the horizontal motion in-process, and current tail gas heating device does not have limit function, always produces the butt joint dislocation of tail gas blast pipe and outlet duct, leads to tail gas leakage, influences the heating effect.
Therefore, in view of the current situation of the prior art, it is an urgent need to solve the problem of developing an exhaust gas heating device for a hook arm vehicle and a hook arm vehicle.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the tail gas heating device for the hook arm vehicle and the hook arm vehicle, which can realize butt joint in the moving process of a carriage and prevent tail gas leakage caused by butt joint dislocation of a butt joint piece and an air outlet pipe from influencing the heating effect of the carriage, and are suitable for the hook arm vehicle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a hook arm automobile-used tail gas heating device, includes the tail gas discharge pipe, the intercommunication has the butt joint spare on the tail gas discharge pipe, the butt joint spare includes lower butt joint dish, the upper surface of butt joint dish is down the spigot surface, the spigot surface inclines to the top to one side down, be provided with the recess on the spigot surface down, the movably butt joint dish that is provided with down on the butt joint dish, the lower surface of going up the butt joint dish is last spigot surface, it inclines to the top to go up the spigot surface, go up the spigot surface with the spigot surface laminating down, upward be provided with the boss on the spigot surface, the boss with recess clearance fit, the intercommunication has the outlet duct on going up the butt joint dish, the outlet duct is used for and carriage intercommunication. Can realize spacingly through the cooperation of boss and recess, prevent that butt joint piece and outlet duct butt joint dislocation from leading to tail gas to leak the heating effect that influences the carriage, set the inclined plane to simultaneously about with and have the guide effect, prevent that the carriage from being fit for the hook arm car and use because of the unable realization butt joint of boss at the horizontal migration in-process.
Furthermore, the butt joint piece further comprises an air inlet pipe, the air inlet pipe is communicated with the groove, the air inlet pipe is in butt joint with the tail gas discharge pipe, the tail gas discharge pipe is provided with a flange, a stud is arranged on the lower surface of the lower butt joint disc, a spring is sleeved on the stud, the stud is connected with the flange, and two ends of the spring are respectively abutted to the lower butt joint disc and the flange. The height and the inclination angle of the lower butt joint tray can be changed by matching the spring with the air inlet pipe made of rubber, the device is suitable for the upper butt joint trays with different heights and angles, is suitable for more types of carriages such as garbage, excrement suction, obstacle clearing, mining and the like, and the application range of the hook arm vehicle is expanded; meanwhile, the lower butt joint disc can be quickly lifted through the spring, so that the groove is completely matched with the boss, and the leakage caused by butt joint gaps is further avoided.
Further, the number of the studs is four. The adaptability change of the heights and the angles of the lower butt joint tray in multiple directions can be ensured.
Furthermore, the lower guide surface and the upper guide surface are both provided with cushion pads. On one hand, impact during butt joint can be reduced, and on the other hand, the butt joint sealing function is achieved.
Further, still include the mounting bracket, the mounting bracket is the L type, the one end of mounting bracket is used for being connected with the hook arm car, the other end of mounting bracket with the exhaust stack is connected. Can fix the exhaust gas discharge pipe.
Further, still include the ripple elbow, ripple elbow intercommunication has the tail gas skirt, the last intercommunication of tail gas skirt has flexible blast pipe, flexible blast pipe intercommunication the tail gas discharge pipe.
Furthermore, a tail gas discharge bypass and a control valve I are sequentially arranged between the telescopic exhaust pipe and the tail gas discharge pipe, the tail gas discharge bypass is communicated with the atmosphere, and a control valve II is arranged on the tail gas discharge bypass. The heating control of the carriage is conveniently realized, and the tail gas can be discharged into the atmosphere through the control valve II and the tail gas discharge bypass when the heating is not needed.
The invention also provides a hook arm vehicle, which comprises a vehicle frame, an engine and the tail gas heating device for the hook arm vehicle, wherein the corresponding end of the mounting frame is connected with the vehicle frame, the corrugated elbow is communicated with an exhaust pipe of the engine, and the tail gas exhaust bypass is connected with the vehicle frame through the mounting seat.
According to the technical scheme, the invention has the following advantages:
the scheme provides a tail gas heating device for a hook arm vehicle and the hook arm vehicle, the heating effect of a carriage is prevented from being influenced by tail gas leakage caused by dislocation through the matching of the groove and the boss, and meanwhile, the boss is prevented from generating interference to influence butt joint by combining the inclined guiding action of the upper guide surface and the lower guide surface; the height and the inclination angle of the lower butt joint tray are changed by matching the spring and the air inlet pipe made of rubber materials, the device is suitable for the upper butt joint trays with different heights and angles, is suitable for more types of carriages such as garbage, excrement suction, obstacle removal, mining and the like, and the application range of the hook arm vehicle is expanded; and the exhaust emission is realized through a control valve II and an exhaust emission bypass.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an exhaust gas heating device for a hook arm vehicle according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a lower docking tray according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an upper docking tray according to an embodiment of the present invention.
Fig. 4 is a schematic view of an assembly structure of the docking member and the exhaust gas discharge pipe according to the embodiment of the present invention.
Fig. 5 is a schematic structural view of the hook arm vehicle according to the embodiment of the present invention.
In the figure, 1, a corrugated elbow, 2, a tail gas guide pipe, 3, a telescopic exhaust pipe, 4, a control valve I, 5, a tail gas exhaust pipe, 6, a lower butt joint disc, 7, an upper butt joint disc, 8, an exhaust pipe, 9, a flange, 10, a spring, 11, a stud, 12, a groove, 13, an air inlet pipe, 14, a boss, 15, an engine, 16, a frame, 17, a tail gas exhaust bypass, 18, a control valve II, 19, a cushion pad, 20 and a mounting frame.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 1 to 4, the present embodiment provides an exhaust gas heating device for a hook arm vehicle, which includes an exhaust gas discharge pipe 5, a butt joint part, a corrugated elbow 1, an exhaust gas guide pipe 2, a telescopic exhaust pipe 3, an exhaust gas discharge bypass 17 and a first control valve; the corrugated elbow 1 is 90 degrees, the corrugated elbow 1 is used for being communicated with an exhaust pipe of an engine 15, the corrugated elbow 1 is communicated with a tail gas leading pipe 2, the tail gas leading pipe 2 is communicated with a telescopic exhaust pipe 3, the telescopic exhaust pipe 3 is communicated with a tail gas exhaust pipe 5, a butt joint part is arranged at a gas outlet of the tail gas exhaust pipe 5, a tail gas exhaust bypass 17 and a control valve I4 are sequentially arranged between the telescopic exhaust pipe 3 and the tail gas exhaust pipe 5, the tail gas exhaust bypass 17 is communicated with the atmosphere, a control valve II 18 is arranged on the tail gas exhaust bypass 17, when heating is not needed, the control valve I4 is closed, the control valve II 18 is opened, and tail gas is exhausted to the atmosphere through the tail gas exhaust bypass 17; the butt joint piece comprises a lower butt joint disc 6, an upper butt joint disc 7, an air inlet pipe 13 and an air outlet pipe 8, the upper butt joint disc 7 is movably arranged on the lower butt joint disc 6, the upper surface of the lower butt joint disc 6 is a lower guide surface, a groove 12 is arranged on the lower guide surface, the lower surface of the upper butt joint disc 7 is an upper guide surface, a boss 14 is arranged on the upper guide surface, the boss 14 and the groove 12 are in clearance fit to play a limiting role to prevent dislocation during butt joint, the lower guide surface and the upper guide surface are inclined surfaces which are inclined towards the inclined upper side, the butt joint of the boss and the lower butt joint disc caused by interference between the boss and the lower butt joint disc during horizontal movement of a carriage can be effectively prevented, cushion pads 19 are arranged on the butt joint surfaces of the upper butt joint disc 7 and the lower butt joint disc 6, the cushion pads 19 are made of rubber materials and have buffering and sealing functions, the air outlet pipe 8 is arranged on the upper butt joint disc 7, the air outlet pipe 8 is used for being communicated with the carriage, the groove 12 of the lower butt joint disc 6 is communicated with the air inlet pipe 13, the air inlet pipe 13 is made of rubber materials, in the embodiment, the air inlet pipe is made of butyl rubber materials, a limiting table is arranged on the inner wall of the air outlet end of the exhaust gas discharge pipe 5, the air inlet pipe 13 is inserted into the exhaust gas discharge pipe 5 and abutted against the limiting table to realize butt joint, a flange 9 is arranged at the pipe orifice of the exhaust gas discharge pipe 5, a mounting hole is arranged on the flange 9, a stud 11 is arranged on the lower surface of the lower butt joint plate 6, the stud 11 is made of rubber materials and has certain flexible deformation, in the embodiment, four studs 11 are arranged, a spring 10 is sleeved on each stud 11, each stud 11 is connected with the flange 9 through a nut, two ends of each spring 10 are respectively abutted against the lower butt joint plate 6 and the flange 9, when the inclination angle and the height of the upper butt joint plate 7 are changed, the air inlet pipe 13 is matched with the spring 10 to realize length change and bending change of the air inlet pipe 13, therefore, the height and the inclination angle of the lower butt joint plate 6 are correspondingly changed, the lower butt joint plate 6 is suitable for upper butt joint plates 7 with different heights and inclination angles on various carriages, the height of the lower butt joint plate 6 can be directly adjusted by adjusting the extending length of the stud 11 from the flange 9, the matching degree of the hook arm vehicle and various carriages is enlarged, meanwhile, the spring 10 can also promote the lower butt joint plate 6 to be quickly lifted after the groove 12 and the boss 14 are completely matched in the butt joint process, the boss 14 is prevented from continuously moving forwards, and the butt joint dislocation is further avoided from generating gaps to cause tail gas leakage; the mounting bracket 20 is L type, and the one end of mounting bracket 20 is used for welding with the hook arm car, and the other end of mounting bracket 20 is provided with the mounting hole and is connected with tail gas discharge pipe 5 welded joint.
As shown in fig. 5, the present embodiment further provides a hook arm vehicle, which includes a frame 16, an engine 15, and the tail gas heating device for a hook arm vehicle, wherein the corresponding end of the mounting bracket 20 is connected to the frame 16, the corrugated elbow 1 is communicated with an exhaust pipe of the engine 15, and the exhaust gas bypass 17 is connected to the frame 16 through a mounting seat.
The principle that the tail gas heating device for the arm vehicle is suitable for the hook arm vehicle is as follows:
firstly, the butt joint of the carriage of the hook arm vehicle is completed in the horizontal movement process, so that the tail gas is conveyed, but the inertia exists in the carriage in the horizontal movement process, and in the specific embodiment, the limit is realized through the matching of the groove 12 and the boss 14, so that the butt joint dislocation caused by the inertia effect of the carriage is overcome; because the lug boss 14 is arranged, interference exists between the lug boss and the lower butt joint disk 6 in horizontal movement, therefore, the upper guide surface and the lower guide surface are both arranged into inclined surfaces, the lower butt joint disk 6 is slowly pressed downwards, and the problem of interference of the lug boss 14 is avoided; when boss 14 and recess 12 are close to complete cooperation state, under the spring 10 effect, lower butt-joint dish 6 rises fast for boss 14 and recess 12 complete cooperation avoid the boss 14 motion to advance, and recess 12 and 14 cooperation have realized the butt joint and have not misplaced, do not produce the clearance, and tail gas does not reveal, is fit for the hook arm car and uses.
From the above detailed description, it can be seen that the present invention has the following beneficial effects:
1. the heating effect of the carriage caused by tail gas leakage influence due to dislocation is prevented by matching the groove 12 and the boss 14, and meanwhile, the boss 14 is prevented from generating interference influence on butt joint by combining the inclined guide effect of the upper guide surface and the lower guide surface;
2. through the matching of the spring 10 and the air inlet pipe 13 made of rubber, on one hand, the change of the height and the inclination angle of the lower butt joint plate 6 is realized, the upper butt joint plate 7 with different heights and angles is adapted, the application range of the hook arm vehicle is improved, on the other hand, the spring 10 can also enable the lower butt joint plate 6 to quickly rise, the limiting effect of the groove 12 is exerted, and the tail gas leakage caused by dislocation is further prevented;
3. and the exhaust emission is realized through a second control valve 18 and an exhaust emission bypass 17.
The terms "upper", "lower", "outside", "inside", and the like in the description and claims of the present invention and the above-described drawings (if any) are used for distinguishing relative positions without necessarily being construed qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a hook automobile-used tail gas heating device, a serial communication port, including tail gas discharge pipe (5), the intercommunication has the butt joint piece on tail gas discharge pipe (5), the butt joint piece is including lower butt joint dish (6), the upper surface of lower butt joint dish (6) is down the spigot surface, down the spigot surface is to the slope of oblique top, be provided with recess (12) down on the spigot surface, movably be provided with butt joint dish (7) down on butt joint dish (6), the lower surface of going up butt joint dish (7) is last spigot surface, it inclines to the slope of oblique top to go up the spigot surface, go up the spigot surface with the spigot surface laminating down, upward be provided with boss (14) on the spigot surface, boss (14) with recess (12) clearance fit, it has outlet duct (8) to go up the intercommunication on butt joint dish (7), outlet duct (8) are used for communicating with the carriage.
2. The tail gas heating device for the hook arm vehicle of claim 1, wherein the butt joint piece further comprises a gas inlet pipe (13), the gas inlet pipe (13) is communicated with the groove (12), the gas inlet pipe (13) is in butt joint with the tail gas discharge pipe (5), the tail gas discharge pipe (5) is provided with a flange (9), a stud (11) is arranged on the lower surface of the lower butt joint disc (6), a spring (10) is sleeved on the stud (11), the stud (11) is connected with the flange (9), two ends of the spring (10) are respectively abutted to the lower butt joint disc (6) and the flange (9), and the gas inlet pipe (13) is made of a rubber material.
3. An exhaust gas heating device for a hook arm vehicle according to claim 2, wherein four studs (11) are provided.
4. An exhaust gas heating device for a hook arm vehicle according to claim 1, wherein a cushion (19) is provided on each of the lower guide surface and the upper guide surface.
5. An exhaust gas heating device for a hook arm vehicle according to claim 1, further comprising a mounting bracket (20), wherein the mounting bracket (20) is L-shaped, one end of the mounting bracket (20) is used for connecting with the hook arm vehicle, and the other end of the mounting bracket (20) is connected with the exhaust gas discharge pipe (5).
6. The tail gas heating device for the hook arm vehicle according to claim 5, further comprising a corrugated elbow (1), wherein the corrugated elbow (1) is communicated with a tail gas leading pipe (2), the tail gas leading pipe (2) is communicated with a telescopic exhaust pipe (3), and the telescopic exhaust pipe (3) is communicated with the tail gas discharge pipe (5).
7. The tail gas heating device for the hook arm vehicle according to claim 6, characterized in that a tail gas exhaust bypass (17) and a control valve I (4) are sequentially arranged between the telescopic exhaust pipe (3) and the tail gas exhaust pipe (5), the tail gas exhaust bypass (17) is communicated with the atmosphere, and a control valve II (18) is arranged on the tail gas exhaust bypass (17).
8. A hook arm vehicle, characterized by comprising a frame (16) and an engine (15), and further comprising the tail gas heating device for the hook arm vehicle as claimed in claim 7, wherein the corresponding end of the mounting frame is connected with the frame (16), the corrugated elbow (1) is communicated with an exhaust pipe of the engine (15), and the tail gas exhaust bypass (17) is connected with the frame (16) through a mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891481.4A CN115284994B (en) | 2022-07-27 | 2022-07-27 | Tail gas heating device for coupler arm vehicle and coupler arm vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891481.4A CN115284994B (en) | 2022-07-27 | 2022-07-27 | Tail gas heating device for coupler arm vehicle and coupler arm vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115284994A true CN115284994A (en) | 2022-11-04 |
| CN115284994B CN115284994B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210891481.4A Active CN115284994B (en) | 2022-07-27 | 2022-07-27 | Tail gas heating device for coupler arm vehicle and coupler arm vehicle |
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| Country | Link |
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| CN (1) | CN115284994B (en) |
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